Patents by Inventor Ramesh Kalathur
Ramesh Kalathur has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240008101Abstract: Systems, methods, and devices that relate to the improvement of controlling impersonating attacks from foreign networks are disclosed. In one example aspect, a method for wireless communication includes receiving, by a policy control node, a request message from a first network node. The request message comprising a first identifier indicating a first public land mobile network associated with an establishment of a bearer or a session for a terminal device. The method includes transmitting a query to a second network node in the core network to obtain a second identifier of a second public land mobile network associated with a registration of the terminal device. The method also includes accepting or rejecting, by the policy control node, the establishment of the bearer or the session for the terminal based on whether the first identifier matches the second identifier.Type: ApplicationFiled: June 30, 2022Publication date: January 4, 2024Inventors: Anil Kumar Mariyani, Ramesh Kalathur
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Patent number: 11864258Abstract: Recovering bearers after a service interruption of a relay node includes receiving, at a relay gateway, an instruction to modify bearers from a mobility management entity (MME), the instruction identifying one or more bearers that were in use by the relay node prior to the service interruption, identifying, at the relay gateway, at least one additional bearer in use prior to the service interruption not identified in the instruction received from the MME, and instructing the MME to create the at least one additional bearer. The at least one additional bearer can include a non-GBR bearer, such as a bearer with QCI of 1 used for VoLTE.Type: GrantFiled: May 26, 2020Date of Patent: January 2, 2024Assignee: Sprint Spectrum LPInventors: Amrit Kumar Chandra, Charles Manganiello, David Zhijun Sun, Jay R. Chernoff, Kristian Kai Johns, Liang Li, Mayur Shirwadkar, Neehar Kulkarni, Ramesh Kalathur, Saravana Velusamy
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Patent number: 11817997Abstract: Systems and methods discussed herein are directed to method for connecting a communication device to a data network via a network, e.g., a wireless communication network, and preventing the communication device from overriding a DNS selection by an operator of the network. The method includes receiving, from a communication device, e.g., an electronic device, a request to connect to a data network, e.g., the Internet, via a wireless communication network. A response message may be provided to the communication device, where the response message comprises (i) a configuration setting for the communication device to use domain name system (DNS) internet protocol (IP) addresses provided by an operator of the wireless communication network when accessing the data network and (ii) a data bit disabling the communication device from overriding the configuration setting. Connection of the communication device to the data network is then facilitated via the wireless communication network.Type: GrantFiled: November 30, 2022Date of Patent: November 14, 2023Assignee: T-Mobile USA, Inc.Inventors: Aziz Motiwala, Kameswaran Arunachalam, Ramesh Kalathur
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Publication number: 20230091265Abstract: Systems and methods discussed herein are directed to method for connecting a communication device to a data network via a network, e.g., a wireless communication network, and preventing the communication device from overriding a DNS selection by an operator of the network. The method includes receiving, from a communication device, e.g., an electronic device, a request to connect to a data network, e.g., the Internet, via a wireless communication network. A response message may be provided to the communication device, where the response message comprises (i) a configuration setting for the communication device to use domain name system (DNS) internet protocol (IP) addresses provided by an operator of the wireless communication network when accessing the data network and (ii) a data bit disabling the communication device from overriding the configuration setting. Connection of the communication device to the data network is then facilitated via the wireless communication network.Type: ApplicationFiled: November 30, 2022Publication date: March 23, 2023Inventors: Aziz Motiwala, Kameswaran Arunachalam, Ramesh Kalathur
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Patent number: 11522752Abstract: Systems and methods discussed herein are directed to method for connecting a communication device to a data network via a network, e.g., a wireless communication network, and preventing the communication device from overriding a DNS selection by an operator of the network. The method includes receiving, from a communication device, e.g., an electronic device, a request to connect to a data network, e.g., the Internet, via a wireless communication network. A response message may be provided to the communication device, where the response message comprises (i) a configuration setting for the communication device to use domain name system (DNS) internet protocol (IP) addresses provided by an operator of the wireless communication network when accessing the data network and (ii) a data bit disabling the communication device from overriding the configuration setting. Connection of the communication device to the data network is then facilitated via the wireless communication network.Type: GrantFiled: February 1, 2021Date of Patent: December 6, 2022Assignee: T-Mobile USA, Inc.Inventors: Aziz Motiwala, Kameswaran Arunachalam, Ramesh Kalathur
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Publication number: 20220247622Abstract: Systems and methods discussed herein are directed to method for connecting a communication device to a data network via a network, e.g., a wireless communication network, and preventing the communication device from overriding a DNS selection by an operator of the network. The method includes receiving, from a communication device, e.g., an electronic device, a request to connect to a data network, e.g., the Internet, via a wireless communication network. A response message may be provided to the communication device, where the response message comprises (i) a configuration setting for the communication device to use domain name system (DNS) internet protocol (IP) addresses provided by an operator of the wireless communication network when accessing the data network and (ii) a data bit disabling the communication device from overriding the configuration setting. Connection of the communication device to the data network is then facilitated via the wireless communication network.Type: ApplicationFiled: February 1, 2021Publication date: August 4, 2022Inventors: Aziz Motiwala, Kameswaran Arunachalam, Ramesh Kalathur
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Patent number: 11076437Abstract: A wireless communication system serves User Equipment (UE) over a Fifth Generation New Radio (5GNR) access point and a non-5GNR access point. The non-5GNR access point exchanges attachment signaling with the UE and exchanges network signaling with a network controller. The network controller exchanges bearer signaling with a data gateway. The data gateway marks Downlink (DL) user data as non-5GNR DL user data and transfers the non-5GNR DL user data to the non-5GNR access point. The data gateway marks additional DL user data as 5GNR DL user data and transfers the 5GNR DL user data to the 5GNR access point. The non-5GNR access point receives and wirelessly transfers the non-5GNR DL user data to the UE. The 5GNR access point receives and wirelessly transfers the 5GNR DL user data to the UE. The data gateway tracks the transferred amount of the non-5GNR DL user data and 5GNR DL user data.Type: GrantFiled: January 8, 2020Date of Patent: July 27, 2021Assignee: Sprint Communications Company L.P.Inventors: Saravana Velusamy, Ramesh Kalathur, Manuprathap Manoharan
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Patent number: 9185541Abstract: Systems and methods of determining wireless data usage are provided. Wireless data usage of a wireless device on a first network of a first network operator is determined. A message indicating a performance of a handover of the wireless device from the first network to a second network of a second network operator is received and the wireless data usage of the wireless device on the second network is determined based on the message received.Type: GrantFiled: March 14, 2013Date of Patent: November 10, 2015Assignee: Sprint Spectrum L.P.Inventors: Michael Hannigan, Moshe Stoler, Ramesh Kalathur, Diego Estrella Chavez
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Patent number: 9125167Abstract: A system and method of paging a wireless device in a communication network is provided. A paging request from a first network for a first wireless device can be received at a paging node in communication with a first network and a second network. A paging message for the first wireless device can be generated at the paging node based on the paging request. The paging message can further comprise an identifier of the first network. The paging message can be broadcast to a plurality of wireless device, the plurality of wireless devices comprising the first wireless device and at least one second wireless device associated with the second network. A paging response can be received from the first wireless device based on the paging message.Type: GrantFiled: April 9, 2013Date of Patent: September 1, 2015Assignee: Sprint Spectrum L.P.Inventors: Diego Estrella Chavez, Ramesh Kalathur, Moshe Stoler
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Patent number: 8874157Abstract: A method of operating a wireless communication system is disclosed. The method includes receiving power status information for resource blocks of a plurality of wireless links, where the resource blocks comprise frequency apportioned timeslots used for exchanging wireless communications between wireless access nodes and user devices. The method also includes processing the power status information to identify ones of the resource blocks which exceed a power threshold, determining scheduling instructions for the resource blocks to reduce the power status information for the ones of the resource blocks to below the power threshold, and transferring the scheduling instructions to at least a first wireless access node for controlling a first wireless link based on the scheduling instructions.Type: GrantFiled: August 11, 2011Date of Patent: October 28, 2014Assignee: Sprint Communications Company L.P.Inventors: Manoj Shetty, Michael Kevin Hannigan, Ramesh Kalathur, Brett L. Christian
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Patent number: 8457631Abstract: A wireless communications system includes a radio network facilitating wireless communications with a wireless subscriber unit, a dispatch application server providing dispatch communications services to the subscriber unit via the radio network, and an IP Multimedia Subsystem (IMS) infrastructure including a Proxy-Call Session Control Function (P-CSCF) and a Serving-CSCF (S-CSCF). The P-CSCF notifies the dispatch application server of subscriber unit registration events, allowing the dispatch application server to provide dispatch communications services without initiating a separate registration process. Dispatch communications are routed between the wireless subscriber unit and dispatch application server through the P-CSCF, bypassing the S-CSCF of the IMS infrastructure.Type: GrantFiled: May 1, 2007Date of Patent: June 4, 2013Assignee: Nextel Communications Inc.Inventors: Ojas T. Choksi, Ramesh Kalathur, Trinh D. Vu
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Patent number: 8301734Abstract: A client-based solution for seamless access to applications across networks is agnostic to the inter-network mix of application architectures with or without IMS. In one embodiment, an application client registers in either an integrated mode or a standalone mode based whether an application availability notification is received within a predetermined period of time.Type: GrantFiled: December 5, 2006Date of Patent: October 30, 2012Assignee: Nextel Communications, Inc.Inventors: David Kuan, Ramesh Kalathur, Moshe Stoler, Ojas T. Choksi, Trinh D. Vu, Hung Bui
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Patent number: 8301780Abstract: A client-based solution for seamless access to applications across networks is agnostic to the inter-network mix of application architectures with or without IMS. In one embodiment, the presence of an added layer of intelligence effectively traverses and is agnostic to the various standards layers.Type: GrantFiled: September 26, 2006Date of Patent: October 30, 2012Assignee: Nextel Communications, Inc.Inventors: David Kuan, Ramesh Kalathur, Moshe Stoler, Ojas T. Choksi, Trin D. Vu, Hung Bui
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Patent number: 8249078Abstract: A method and system to help reduce the impact of inter-node latency in session setup. In accordance with the method, a computer will predict a measure of call setup signaling latency for each of a number of wireless communication devices based on actual latency data for the coverage areas in which the devices are positioned, and the computer will then use the predicted latency measures as a basis to select one or more of the devices to wake up in advance of session initiation. The computer will then send at least one message that triggers wakeup of the selected device(s), so as to help reduce latency in subsequent initiation of a session with the selected device(s). Further, the computer may provide notification to a given device of the predicted latencies determined for other devices, to facilitate presentation of the latency information to a user.Type: GrantFiled: November 16, 2009Date of Patent: August 21, 2012Assignee: Sprint Spectrum L.P.Inventors: Kafi Hassan, Ramesh Kalathur
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Patent number: 8059809Abstract: Systems and methods of establishing group calls are provided. Contact index information is synchronized between a communication unit and a contact synchronization server. A group call request message, including index information for one or more contacts, is sent from a communication unit to a signaling server. The signaling server uses the index information to obtain communication unit addresses from the contact synchronization server.Type: GrantFiled: March 16, 2007Date of Patent: November 15, 2011Assignee: Nextel Communications Inc.Inventors: Qiang Zhang, Jing Qu, Ramesh Kalathur
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Patent number: 8055262Abstract: Several embodiments of an IMS communications network are disclosed. In one embodiment, the network comprises a plurality of dispatch application servers (DAS), an S-CSCF, and an event notification server. The S-CSCF is adapted to receive an IMS registration request from a dispatch client, authenticate the registration request, send a registration confirmation to the dispatch client, and send a notification indicating the registration of the dispatch client to an event notification server. The event notification server is adapted to receive the notification from the S-CSCF, select a DAS, and send a notification to the selected DAS indicating an assignment to provide dispatch service to the dispatch client. In another embodiment, the registration notification to the event notification server is sent from the dispatch client, instead of the S-CSCF.Type: GrantFiled: July 5, 2006Date of Patent: November 8, 2011Assignee: Nextel Communications Inc.Inventors: Trinh D. Vu, Ojas Choksi, Ramesh Kalathur, Moshe Stoler, Hung Bui, David Kuan
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Publication number: 20080274735Abstract: A wireless communications system includes a radio network facilitating wireless communications with a wireless subscriber unit, a dispatch application server providing dispatch communications services to the subscriber unit via the radio network, and an IP Multimedia Subsystem (IMS) infrastructure including a Proxy-Call Session Control Function (P-CSCF) and a Serving-CSCF (S-CSCF). The P-CSCF notifies the dispatch application server of subscriber unit registration events, allowing the dispatch application server to provide dispatch communications services without initiating a separate registration process. Dispatch communications are routed between the wireless subscriber unit and dispatch application server through the P-CSCF, bypassing the S-CSCF of the IMS infrastructure.Type: ApplicationFiled: May 1, 2007Publication date: November 6, 2008Applicant: Nextel Communications, Inc.Inventors: Ojas T. Choksi, Ramesh Kalathur, Trinh D. Vu
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Publication number: 20080077654Abstract: A client-based solution for seamless access to applications across networks is agnostic to the inter-network mix of application architectures with or without IMS. In one embodiment, the presence of an added layer of intelligence effectively traverses and is agnostic to the various standards layers.Type: ApplicationFiled: September 26, 2006Publication date: March 27, 2008Applicant: NEXTEL COMMUNICATIONS, INC.Inventors: David Kuan, Ramesh Kalathur, Moshe Stoler, Ojas T. Choksi, Trin D. Vu, Hung Bui